Neo-Terran Imperial Colony Ship

From Tardis Wiki, the free Doctor Who reference

A colony ship belonging to the Neo-Terran Imperium around the 450th century was embarking on a journey from the homeplanet of the humans of the time to a new planet owned by the father of Navitrix Toledo.

At some point during the trip, the Fifteenth Doctor and Ruby Sunday arrived and quickly discovered that the ship was being sabotaged from within. Initially, Toledo believed the sabotage to be performed by a Klabautermann, but the Doctor deduced that Strategos Garcia, another member of the ship, was the culprit behind the damage, as he believed the ship to be rightfully his. He was detained, and the Doctor and Ruby deported in the TARDIS. (GAME: In Loving Memory [+]Loading...["In Loving Memory (episode)"])